Fabrication of Pitch-containing Carbon Nanofibers by Electrospinning Technique for Application of Glucose Biosensor

• Main Authors: HUANG, TSAI-CHEN, 黃彩甄
• Other Authors: CHEN, CHING-YI
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/c5cjaw

碩士 === 國立中正大學 === 化學工程研究所 === 107 === This research established the model of glucose sensors, at the same time, giving pitch a new and high-valued application. Therefore, we combined advantages of pitch and PAN to prepare the electrospun nanofibers and further convert to carbon nanofibers by heat treatments. The pitch/PAN-blended carbon nanofibers not only have good corrosion resistance and strength, but also exhibit good electrochemical properties that can be applied in biosensor fields. In this study, electrospinning technique was utilized to fabricate pitch/PAN blended carbon nanofibers, which had high surface area to volume ratio. Furthermore, we functionalized the surface of carbon nanofibers by acid treatment for introducing phenylboronic acid as recognition receptor to detect glucose. The purpose of this study aims to find a proper procedure to construct a glucose biosensor model, so that we can provide a new application for the low economic valued pitch. First of all, SEM images showed fibers with two stages stabilization and carbonization could remain its morphology from melting. The modified carbon nanofibers were investigated by XPS and FT-IR, showing the content of oxygen rised up 20%. The hydroxyl and carboxyl groups were also significantly enhanced from 3% up to 10%. The surface roughness were also increased in the SEM images. Finally, the sensing range of glucose biosensors is from 4 ~ 20 nM. Moreover, it has selectivity to fructose. According to the above results, it shows 4-APBA modified sensor has sensing ability for glucose, which means this study can construct the model of non-enzyme glucose sensors.